Saw-mill dog



UNlrF-D STATES PATENT ogs-ICE.,

REUBIN FpREDICKV AND JOSEPH H. REDICK, OF SPENCERVILLE, OHIO.

SAW-MILL DOG.

SPECIFICATION forming pari: of Lettrsfatent No. 382,555, dated May 8,188`8. Application tiled June 10, 1887. Serial No. 240,921. (No modelj ITo -@ZZ whom it may concern):

Be it known thatA we, REUBIN F. REDICK and JosErHH, Rumori, citizensofthe United States, residing at Spencerville, in the county of AllenandState of Ohio, have invented a new and useful `Improvement inSaw-Mill Dogs, of which thefollowing is a specification. Our inventionrelates to an improvement in saw-mill dogs; and it consists in thepeculiar construction and combination of devices, that will be morefully set forth hereinafter, and particularly pointedout in the claim.

In the drawings, Figure l is a perspective view of 'a saw-mill dogembodying our improvements. Fig. 2 is a vertical sectional1 view of thesame. Fig. 3 is a horizontal sectional view taken on the line w :v ofFig. 2.

u from one side thereof.

Fig. 4 represents a vertical section of a part of the machine showingthe relation of the pivotal points of the lever and rod and thestop-bracket to which the lever is pivoted.

A represents a vertical standard, to-,the upper and-lower ends ot' whichare bolted horizontal brackets or guides B, which project In the outerends of the said brackets are vertical aligned openings O.

I) represents a vertically-movable slide-bar, which is somewhat longerthan the standard, and is similar thereto in size and shape. The saidslidebar is guided in the openings C.

E represents a lever, which has its inner vend pivoted between the armsof the bifurcated bracket E', secured to the side of the standards, asshown in Fig. 2, and F represents a spring-keeper,which projects beyondthe front edge of the standard near the upper end thereof,

' and is adapted to engage the lever and retain the same when raisednearly to a vertical position. l f

G represents a connecting-rod, which has its upper endr pivoted to thelug of the lever E, as shown in Fig. 1, the lug resting between the earse, and its lower end pivoted to the slide-bar D. t

I represents a vertically movable block, which is arranged on theslide-bar and is adapted to workindependently thereon, the said blockbeing provided with avertical central opening, through which theslide-bar extends. This block is provided with alongitudi-` nal opening,K, which is 'arranged atright anver' were lifted.

gles to the slide-bar. kOn theouterside of the, block are projectingears L, and between the said ears is an opening, M, which communicateswith the opening K.

N represents a dog, which has the depending wedge-shapedpoint O and thehorizontal arm P, which extends through the opening K and bears againstthe outer side of the slidebar. The opening'K is somewhat larger thanthe arm P, so that the latter is free to turn laterally a slightdistance in the said opening.

R represents `a lever, which is pivoted between the ears L,.and has aneccentric cam, S, formed at its inner end,which cam extendsl through'the opening M. The outer end of both the levers R4 and E are weighted,as shown.

The relation'between the pivotal point of the lever E to the bracket Eand the pivotal point ofthe ears c ofthe rod G is such that when thelever falls the latter pivotal point is brought just slightly to thelopposite or inner side of the former point; or, in other words, thepivotal point of the rod just slightly passes its dead-point. The rodthen brings up against the edge of the bracket E', so that the lever canfall no farther, the bracket serving thus as a stop. Itis evident fromthis that no upwardpressure can lift the lever, but will hold 8o it downtighter. ,This action insures that the planks will be cut of equalthickness from end to end, as would not be the case if the le- Theoperation of our invention is as follows: The leverRhas its outer endnormally lowered, so asto cause the cam at its 'inner end to bearagainst the 'outer side of the dog-arml P and force the latter so firmlyagainst the opposing side of the slide-bar as to clamp the said dog andthe block I rigidly thereto, and thus secure thedog at any desiredvertical adjustmenton the slide-bar and at any desired longitudinaladjustment with relation Yto the block I. By means of the lever E theslide-,bar may be raised or lowered to cause the dog to either engage ordisengage the saw-log, as will be readily understood. ,y f v Having thusdescribed our invention, wev claiml' roo The combination, with thestandard, the brackets secured to the upper and lower ends thereof, andthe slide passing througgghk openings in said brackets, ofthebifurcatedbracket our own we have hereto affixed our signatures inpresence of two witnesses.

REUBIN F. REDICK. JOSEPH H. REDICK.

Witnesses:

T. J. REMINGTON, A. D. MILLER.

In testimony that we claim the foregoing as

